Main-line telegraph-repeater.



s. VOORHIES. MMN LINE TELEGRAPH REPEATER- I APPLICATION FILED JAN-0,1937. 1,277,57, Patented Sept. 3,1918.

ATTORNEYS 3 s 4 9, 1 Rm M H i w R N w e y m M v T 5 i. l W a w 53 6 w fix E X B c I! F I 9 5 G7 1 W a 2 4 u 0 I l 6 a k IH 5 A 0 5 R G T. a

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SYLVESTERVOORHIES, or ENIJERLIN', NORTH DAKOTA;

' aerator.

To all it may concern Be it knownthat I, SYLVESTER VooRHms, acitizen' of the United States, resldent of Enderlin, county of Ransom, State of North Dakota, have invented certain new and useful Improvements in Main-Line Telegraph- Repeaters, of whichthe following is a specification. 1 1- 1 L In the operation of a telegraph line, it has been customary to provide the repeater with a local battery, thereby increasing the initial cost and the costof maintenance otthe line. "l The object of my present invention 1s to provide a repeater which will dispense entirely with the useofalocal battery and effect a considerable saving in the cost of installation and maintenance of the repeater.

A further object is to provide a repeater I having provision for ease of adjustment to compensate for varying climatic conditions. Other objects of the invention will appear .from the following detailed description.

The invention consists generally 'in a re- 'peater having means for utilizing the main line battery :of a local battery.

In the accompanying drawings forming part of this specification.

Figure 1 is a diagrammatic view illus- .trating the repeater and circuit when the line is not in use, both east and west l1ne keys being closed. Fig. 2 is a similar view showing the position of theparts when the west line key has been "opened, but before the movement of the parts hasbeen completed. Fig. 3 is a similar'view showing the final position assumed by the parts when the west line. operator has opened his key and controlled by t raphers key;

' before he has begun 'totelegraph.

In each of the three figures it is assumed that A is connected to a west. going line, and A to an east oing line; which lines are e ordinary type of teleg- The repeater may be considered as insertedinto the line between these sections and connected therewith at X and X.

Spring circuit closers D and D are connected at one end through resistance coils G and C with the main line wires Aand A. Electromagnets I and I have arinatures H andH.

Theends of these armatures extend a sufi'icient distance to contact with the circuit olosersD and D. Stops and S limit the Speeification of Letters Patent.

d with the contacts E and eliminating entirely the use magnets K and K MA N-LINE TELEGRAPH-REPEATER.

PatentedSept. 3, ram.

Application filed January 10, 1917. Serial No. 141,623.

movement of the armatnres away from the cores of the magnets.

Contact points G and G are provided in the path of'the circuit closers D and D and conductors F and F are connected with the line wires A and A and insulated from said circuit closers. The armatures H and H have springs V and V, which normally. tend to holdthese armatures out of contact with the cores of the magnets I and I and away from D and D. A pair of magnets J and J are provided, arranged in opposing relation to one another and having an armature L mounted to swing between them through alternate attraction of these magnets. Conductors O and 0" connect one side of the magnets J and J with the contact posts G and G and similar conductors Z and Z connect the other side of the magnets J and Spring circuit closers M and M tioned upon opposite sides of a T-shaped head L of the armature L to be engaged thereby for making and breaking the contact between these circuit N and N. e

Conductors P and P and R and R 0011- nect the contacts N and N with one side of the magnets Iand I, and conductors B and B/ are posibattery and the ground. Conductors ;W and W connect the circuit closers M andM with the circuit closers D and D and with the line wires A and A through the coils C and C, and permanent are mounted upon opposite sides of the armature L for holding it against the spring contact closers M and M to keep them out of engagement with the contacts N and N.

With the circuit and apparatus in the condition as shown in Fig. 1, should the west operator open his key, an actuation of the parts of the repeater is accomplished and the first circuit changes established are as shown in the diagrammatic view illustrated by Fig. 2. i When the circuit of the west line is opened by the west operators key, the battery which has been energizing the magnet I is out off by the opening of the west operators key, the former holding circuit being as follows:

Battery 1, wires 2, B, magnet winding I,

wire R, armature H, to which wire R is and E respectively.

connectthe other side of these magnets with the main line closers and posts the opening of the key,

electricallyconnected, contact 3, spring 1), wire 4, resistaiicecoil 0, wires 5 and 6, and out on the conductor A. to the west line through the key-at that station to ground, and back through the earth to the grounded side of the battery 1.

Then the coil 1 has been deenergized by the armature H is released and the spring Vi movesthe armature over to the stop S which limits its ,iiiovement. i

The spring D,

i in its backward movement until it is stopped insulated from the spring D, -stop G.

' sulatedfrom ,the spring ,D, contact stop 7G, a

by: {the stop E,

I 7, .Looking at, Fig. 2, it is thus opening the contact between. thevcontact member 8, carried by and seen that the concoil I will nowifbe denergized ,thefformer holding circuit being as follows which is in contact at 7 wathvithe armaturez H, follows the armature 5! i to the east, l ne.

, The inaiinl ne v and the J tact between-the member 8 andi-the stopLG hasibeeniopened, but the contact 7 is still closed and illflCOililELCl? has been closed be tween the stop E and the spring D.

actuating the coilJ beingas follows:

This closes iLCllCuli] energizing 0011 J, the circuit.

1 is opened.

Resistanceicoil G, wires 9 and F, 0011- tact men'iber 11, which is carried byqand, iiiewire O, coil J,-\ vireiZ, contactipoint E,

1 act-1y the same,

; as shown in Fig, 2,

...spring M to the left tact between the spring and the post close the contact between the spring M and spring 1), wire 12, to the other: side of the resistance gcoil C.

, The twoi halves of the repeater are eX- is, closed current flows through the resistance (3011 C; hence current is now flowin g through the resistance coil C from: the east line circuit and part of ,the current is. shunted through the winding J thus actuating the armature L.

, VVhen' the armature L is pulled to theleft,

coil J has-been actuated and the T-shaped head L of the armature L has moved the.

so as to break the con- N and the post N.

The contact the,-contactbetweenvtheipost N and the spring M over wires P and Similarly the contact 7, which is in parallel with theicontact between the post N and the spring M, through wires and P. now [has its shunt l'GHIOVBClSO that the actuation of the coils I and I, through the operation of the west line operators key, can

i "cause-no circuit changes dependent upon the contact 3, tliatcontact being shunted as dey scribed, but the contact 7 will follow the op- .erators key andirepeat the impulses to the east line. j I, Looking now at that the contact 7 has been opened and the andv we have seen by tracing v outctlie west llIlGCllCUlt: that while. the key a permanent magnet IQ servesrto hold 1i) in that position untilthe 3 is then:short circuited by,

but the contact; 8 has been battery. 15 is thus sending out impulses following I the west T line opera-- tors key through the following circuit:

swires 16, B," vindi igLwire B, armature Hmcontajct 7-, springD, wire "12, resistance coil-C, wires9gand 19, through conductor A tothe east, line station. Thesequ'euce of, operation of the armatures H and H depends, of course,

upon which line key That is, if a key in section A oi? the line is opened-first, then armature H will move first, followed byl armature ,H, while it azkey iinsectionrl is first. opened, thenarniature H will, inove first, both aruiatures 7' operating with each opening or section of the line.

closingbf key in :either Thegniagnet J will be energized first when armature H moves Efirst andii' armature H is moved first; then the magnet J isener- ;igized first i M i 'While I have describediny invention-and illustrated, it inone;pal"ticular design, I do not wish it understood that Ilimit myself to? this coi struetion as it is evidentthat the application of my ,inventionfmay be varied in many a ways within thef scope of the following claims. ,4; 1 I

I (tlitllllas my inventionj If V 1. A main line,telegr aphrepeater comprising gprin ary, magnets in, circuit with the main line, arm aturesftfoi said niagi i'ets,I circuit closers. controlled by the movement of said armatures,secondary ,magnets in "circuit with said main line, for receiving a port on lofthe naiiiglinecurrent therefrom, an

I armature 1 for: said, secondary, ,magnets,' and circuit closers connected W1l3h, St1d primary magnets and controlled by the movement of the armature of said secondary magnets for making or breaking. the circuit through said primary,.inagi ets; a v v 7 ,2. A mainline telegraph repeatercomprisingmain line magnet coils,v arinatures coracting with said coils, pair [of line .con-

. troller magnet coils, an

a mature co-acting. rolled by said main therewith, contacts con-t ,line magnet coil, armatures; for selecting e ther of said, line. controller, coils, landhold- FigqB, itwillbe ,110i18di;11"1,9 neans associated withi said linepcontroller armature for maintaining it in either of two positons, after oneof the line controller magnet coils has been energized, until the other of said line controller mag net coils has been energized.

3. A main line telegraph repeater comprising a pair of main line magnet coils, one in circuit with the east going line, the other in circuit with the west going line, a pair of line controller coils, a resistance coil in circuit with each of said main line magnet coils for shunting a part of the current into said line controller coils, contacts controlled by said main line magnet coils for selecting said line controller coils, and circuits controllable by said main line magnet coils from either the west or the east line for actuating said line controller coils.

4. A main line telegraph repeater comprising a pair of main line magnet coils, an armature associated with each of said magnet coils, an east line circuit including one of said magnet coils and a resistance coil, a west line circuit including the other of said magnet coils and a resistance coil, a pair of line controller coils, an armature controllable by either of said line controller coils, contacts controllable by the armatures of said main line coils for shunting said line controller coils across said resistance coils selectively.

5. A main line telegraph repeater comprising a pair of main line magnet coils, one of said coils being in circuit with a resistance coil and an east going line, the other of said coils being in circuit with a second resistance coil and a west going line, a pair of line controller coils, saidresist'ance coils shunting a portion of the current through said line controller coils, a circuit and contacts controllable through the operation of the east line circuit for actuating one of said line controller coils and rendering inactive the other of said line controller coils, a second circuit and contacts under control of said west line circuit controlling the other of said line controller coils and rendering said first line controller coil inactive, an armature associated with said line controller coils and controllable by either of said coils,

and means associated with said armature for holding said armature in either of two positions in which it is drawn by one of said line controller coils until it is actuated by the other of said line controller coils.

6. A main line telegraph repeater comprising main line magnet coils, armatures and contacts co-acting with said coils, a pair of line controller magnet coils, an armature co-acting therewith, a circuit co-acting with said main line magnet coils and said line controller magnet coils and including two resistance coils, said circuit including contacts for actuating one of said line controller magnet coils on the opening of one end of the main line in which the repeater is connected and also contacts for actuating the other of said line controller magnet coils when the other end of the main line in which said repeater is connected is opened, said controller magnet coils being actuated by being bridged across said resistance coils. In a main linetelegraph repeater the combination of a line controlled magnet coil, an armature and contacts controlled by said coil and a main line magnet coil, an armature associated therewith, a pair of springs positioned adjacent to said main line coil, the forward of said springs carrying a contact and the rearward of said springs carrying two contacts, a contact on said armature adapted to make contact with one of said contacts on said rearward springs,a back contact adapted to make con tact with the second of said contacts on said rearward spring and a circuit associated with said coils and said contacts for energizing said line controller coil on the first closing of said contact between said rear ward spring and said back contact whenever a main line operator takes control of the line.

In Witness whereof, I have hereunto set my hand this 28 day of Dec.,- 1916.

SYLVESTER VOORHIES.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, washington, D. G. 

